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Understanding Mechanisms of Exercise Behavior Change

Primary Purpose

Overweight and Obesity, Physical Activity, Incentives

Status

Completed

Phase

Not Applicable

Locations

United States

Study Type

Interventional

Intervention

self-monitoring

daily incentives

delayed lump sum incentives

About this trial

This is an interventional basic science trial for Overweight and Obesity focused on measuring overweight, obesity, physical activity, exercise

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

Complete less than 150 minutes of moderate-vigorous physical activity weekly
Daily access to the internet for 3 weeks following baseline research visit
Have or are willing to create an account on PayPal
Willing to wear a heart rate monitor watch during physical activity for 3 weeks
BMI greater than or equal to 25, from self-reported height and weight

Exclusion Criteria:

Diagnosis of cardiovascular, metabolic, or renal disease

Sites / Locations

University of Colorado Boulder

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Active Comparator

Experimental

Arm Label

Self-Monitoring

Daily Incentives

Delayed Lump Sum Incentives

Arm Description

Participants self-monitor their physical activity

daily payments for physical activity

lump sum payments for physical activity

Outcomes

Primary Outcome Measures

Moderate-vigorous physical activity minutes

summed minutes of weekly moderate intensity physical activity & vigorous intensity physical activity

Self-Efficacy for physical activity

8-item self-report scale measuring self-efficacy (Social Cognitive Theory, Bandura, 1977; also called "perceived behavioral control", Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 8 items, scored 1-7 with higher scores indicative of greater self-efficacy

Moderate-vigorous physical activity minutes

summed minutes of weekly moderate intensity physical activity & vigorous intensity physical activity

Self-Efficacy for physical activity

Attitudes toward physical activity

12-item self-report scale (Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 12 items scored from -5 to +5, with higher scores indicative of more positive attitudes

Attitudes toward physical activity

12-item self-report scale (Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 12 items scored from -5 to +5, with higher scores indicative of more positive attitudes

Secondary Outcome Measures

Full Information

NCT ID

NCT03465800

First Posted

February 28, 2018

Last Updated

October 18, 2018

Sponsor

University of Colorado, Boulder

1. Study Identification

Unique Protocol Identification Number

NCT03465800

Brief Title

Understanding Mechanisms of Exercise Behavior Change

Official Title

Understanding Mechanisms of Exercise Behavior Change

Study Type

Interventional

2. Study Status

Record Verification Date

October 2018

Overall Recruitment Status

Completed

Study Start Date

February 26, 2018 (Actual)

Primary Completion Date

June 30, 2018 (Actual)

Study Completion Date

July 11, 2018 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title

Principal Investigator

Name of the Sponsor

University of Colorado, Boulder

4. Oversight

Studies a U.S. FDA-regulated Drug Product

Studies a U.S. FDA-regulated Device Product

Data Monitoring Committee

5. Study Description

Brief Summary

This research seeks to examine psychological factors that may impact relationship between incentives and health behavior engagement, specifically physical activity. Additionally, it will compare the impact of two different incentive schedules on behavior engagement, one providing immediate rewards (i.e. rewards received on a daily basis) and another providing delayed rewards (i.e. rewards received at the end of the study period), with an active self-monitoring intervention condition in which no rewards are offered. Study participants will provide reports of their physical activity each day for three weeks, and in the two incentive conditions, they will receive small monetary rewards for their physical activity. Following the three week reporting and reward period, participants will complete two additional assessments, measuring psychological constructs and behavior engagement following the cessation of rewards. The study will also examine how cognitive and anthropomorphic factors may contribute to intervention response and the effects on psychological constructs.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study

Overweight and Obesity, Physical Activity, Incentives

Keywords

overweight, obesity, physical activity, exercise

7. Study Design

Primary Purpose

Basic Science

Study Phase

Not Applicable

Interventional Study Model

Parallel Assignment

Masking

Participant

Allocation

Randomized

Enrollment

68 (Actual)

8. Arms, Groups, and Interventions

Arm Title

Self-Monitoring

Arm Type

Active Comparator

Arm Description

Participants self-monitor their physical activity

Arm Title

Daily Incentives

Arm Type

Experimental

Arm Description

daily payments for physical activity

Arm Title

Delayed Lump Sum Incentives

Arm Type

Experimental

Arm Description

lump sum payments for physical activity

Intervention Type

Behavioral

Intervention Name(s)

self-monitoring

Intervention Description

self-monitoring of physical activity

Intervention Type

Behavioral

Intervention Name(s)

daily incentives

Intervention Description

daily incentive payments for physical activity

Intervention Type

Behavioral

Intervention Name(s)

delayed lump sum incentives

Intervention Description

delayed lump sum payments for physical activity

Primary Outcome Measure Information:

Title

Moderate-vigorous physical activity minutes

Description

summed minutes of weekly moderate intensity physical activity & vigorous intensity physical activity

Time Frame

Week 3

Title

Self-Efficacy for physical activity

Description

Time Frame

Week 3

Title

Moderate-vigorous physical activity minutes

Description

summed minutes of weekly moderate intensity physical activity & vigorous intensity physical activity

Time Frame

Week 5

Title

Self-Efficacy for physical activity

Description

Time Frame

Week 5

Title

Attitudes toward physical activity

Description

12-item self-report scale (Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 12 items scored from -5 to +5, with higher scores indicative of more positive attitudes

Time Frame

Week 3

Title

Attitudes toward physical activity

Description

12-item self-report scale (Theory of Planned Behavior, Ajzen, 1985); scores are a mean of 12 items scored from -5 to +5, with higher scores indicative of more positive attitudes

Time Frame

Week 5

10. Eligibility

Sex

All

Minimum Age & Unit of Time

18 Years

Accepts Healthy Volunteers

Eligibility Criteria

Inclusion Criteria: Complete less than 150 minutes of moderate-vigorous physical activity weekly Daily access to the internet for 3 weeks following baseline research visit Have or are willing to create an account on PayPal Willing to wear a heart rate monitor watch during physical activity for 3 weeks BMI greater than or equal to 25, from self-reported height and weight Exclusion Criteria: Diagnosis of cardiovascular, metabolic, or renal disease

Facility Information:

Facility Name

University of Colorado Boulder

City

Boulder

State/Province

Colorado

ZIP/Postal Code

80309

Country

United States

12. IPD Sharing Statement

Plan to Share IPD

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Understanding Mechanisms of Exercise Behavior Change

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